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AFR 265cc Oval Port Magnum BBC "As Cast"
Aluminum Cylinder Heads for all Big Block Chevys
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Small Port, High Velocity, Torque Monster
Want to wake up the Big Block in your favorite tow vehicle? AFR’s 265cc high velocity oval
port is just the ticket! They are also ideal on smaller cubic inch street performance
applications (396-468 CID), providing “gobs” of bottom end torque, tremendous throttle
response, and great all around power. With AFR’s trademark 3/4” deck, reinforced rockerstud
bosses, and thick rugged castings, you can own the strongest and most efficient heads
on the market today. Premium hardware such as Ferrea 2.19/1.880 one piece stainless
valves, 1.550 double springs, 10 degree locks and retainers, and high quality studs
and guideplates all come as standard equipment. Take note the higher flowing exhaust
ports are raised .375 over stock location, and therefore these heads might not be a
direct bolt-on in every application. These heads have no EGR and are not emissions legal.
Note:
Optional stud girdle required for 2º rolled valve angles and 1” longer head bolts
needed on four bottom exhaust bolt holes.
FREE Shipping on ALL AFR Heads!!!
All AFR BBC Heads not "In Stock" are made to order (4-6 WEEK BUILD TIME) and are ordered after payment is received. Contact us to see if the heads you want are in stock.
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| Kit Description |
Part Number |
Price |
Buy |
| 265cc As Cast NO PARTS 119cc |
3600 |
$1455 |
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| 265cc As Cast NO PARTS CNC Chambers 121cc |
3600-1 |
$1741 |
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| 265cc As Cast w/Hydraulic or Solid Flat Tappet Springs 119cc |
3610 |
$1843 |
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| 265cc As Cast w/Hydraulic or Solid Flat Tappet Springs CNC Chambers 121cc |
3610-1 |
$2129 |
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| 265cc As Cast w/Solid Roller Springs 119cc |
3620 |
$1939 |
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| 265cc As Cast w/Solid Roller Springs CNC Chambers 121cc |
3620-1 |
$2229 |
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Flow Chart:
CNC Combustion Chamber:
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Basic Package Components:
0 CNC Ported Combustion Chambers
20% CNC Ported Exhaust Ports (Bowl Blend)
20% CNC Ported Intake Ports (Bowl Blend)
3-angle Valve Job/Radiused Exhaust
Intake Valve, 2.190” stainless steel #7601
Exhaust Valve, 1.880”stainless steel #7630
1.550” O.D. Dual Valve Spring with dampner 140 lbs. on seat, 365lb open #8016
10º 1.450 Chrome Moly Retainers #8510
10º Valve Locks #9005
Guide Plates #6109
Valve Seals #6611
Hardened Shims #8045
Intake Valve Seats #9062
Exhaust Valve Seats #9064
Bronze Valve Guides Intake #9045
Bronze Valve Guides Exhaust #9046
AFR BB Chevy 7/16 Exhaust Studs #6406
AFR BB Chevy 7/16 Intake Studs #6407
All Accessory Holes are Predrilled & Tapped!
Specifications, Features, and Supporting Components:
Head Torque 75 Ft. Lbs.
Intake Port Volume (as cast) 265cc
Intake Port Gasket Fel-Pro #1212, AFR #6857
Intake Valve Size 2.190 AFR# 7601
Exhaust Port Volume (as cast) 115
Exhaust Port Gasket AFR #6858
Exhaust Valve Size 1.880 AFR #7630
4.540 bore, Fel Pro #1017, AFR #6850
Head Bolts & Studs Standard ARP, AFR #6308, #6307
Head Bolt Washers Manley, AFR #6320
Sugg.. Manifold Vic Jr, RPM Performer, Wieand Stealth
Spark Plug Starting Range Autolite 3935
Combustion Chambers 119cc
Spring Pocket can be cut to 1.750, no deeper.
Stud Girdle AFR #6210
Valve Spacing Standard
Rocker Arms Standard
Valve Angle 24º/4º Intake, 15º/4º Exhaust
Angle Mill (milling available), 102cc Maximum .009” per cc
Flat Mill (milling available), 114cc Maximum .006” per cc
Note: Milling head deck will affect flow numbers
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View the rest of our catalog:
Full Catalog
Please contact us with any questions:
2587 Dos Lomas
Fallbrook, Ca 92028
(760) 586-5617
Email: sales@TREperformance.com
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